AMD Radeon RX 7800 XT vs AMD Radeon HD 8740 OEM

VS

AMD Radeon RX 7800 XT

AMD Radeon HD 8740 OEM

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 XT and 1024MB VRAM Radeon HD 8740 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 XT 's Advantages

Released 9 years and 11 months late

Boost Clock2430MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (624.1GB/s vs 72.00GB/s)

3328 additional rendering cores

AMD Radeon HD 8740 OEM 's Advantages

Lower TDP (55W vs 263W)

Score

Benchmark

FP32 (float)

Radeon RX 7800 XT +4456%

37.32 TFLOPS

Radeon HD 8740 OEM

0.819 TFLOPS

Radeon RX 7800 XT

VS

Radeon HD 8740 OEM

Graphics Card

Aug 2023

Release Date

Sep 2013

Navi III

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1295 MHz

Base Clock

-

2430 MHz

Boost Clock

-

2438 MHz

Memory Clock

1125 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

624.1GB/s

Bandwidth

72.00GB/s

Render Config

60

Compute Units

8

-

3840

Shading Units

512

240

TMUs

32

96

ROPs

16

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

64 MB

L3 Cache

-

Theoretical Performance

233.3 GPixel/s

Pixel Rate

12.80 GPixel/s

583.2 GTexel/s

Texture Rate

25.60 GTexel/s

74.65 TFLOPS

FP16 (half)

-

37.32 TFLOPS

FP32 (float)

819.2 GFLOPS

1166 GFLOPS

FP64 (double)

51.20 GFLOPS

Board Design

263W

TDP

55W

600 W

Suggested PSU

250 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 32

GPU Name

Cape Verde

Navi 32 XT (215-180000006)

GPU Variant

Cape Verde PRO

RDNA 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

28.1 billion

Transistors

1.5 billion

346 mm²

Die Size

123 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.2

OpenCL

1.2

1.3

Vulkan

1.2

-

6.7

Shader Model

5.1

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